import java.util.Scanner;

public class supermarket {
    public static void main(String[] args) {
        System.out.println("---------黑马小商城-----------");
        double toothbrush=8.8;
        double towel=10.0;
        double cup=18.8;
        double apple=12.5;
        double banana=15.5;
        int i=0;
        String a="￥";
        System.out.println("----------黑马小商城----------");
        System.out.println("1.牙刷的价格为:"+toothbrush+"元");
        System.out.println("2.毛巾的价格为:"+towel+"元");
        System.out.println("3.水杯的价格为:"+cup+"元");
        System.out.println("4.苹果的价格为:"+apple+"元");
        System.out.println("5.香蕉的价格为:"+banana+"元");
        while(a.equals("￥")) {
            Scanner scl =new Scanner(System.in);
            System.out.println("请输入你需要购买商品的序列号:");
            i= scl.nextInt();
            switch (i) {
                case 1:
                    System.out.println("请输入你需要购买的牙膏数量:");
                    int toothbrushnnumber = scl.nextInt();
                    double toothbrushnnum = toothbrushnnumber * toothbrush;
                    System.out.println("你购买了牙刷" + toothbrushnnumber + "支，需要花费" + toothbrushnnum + "元");
                    System.out.println("需要继续购买请输入Y，否则输入N");
                    a=scl.next();
                    break;
                case 2:
                    System.out.println("请输入你需要购买的毛巾数量:");
                    int towelnumber = scl.nextInt();
                    double towelnum = towelnumber * towel;
                    System.out.println("你购买了毛巾" + towelnumber + "支，需要花费" + towelnum + "元");
                    System.out.println("需要继续购买请输入Y，否则输入N");
                    a=scl.next();
                    break;
                case 3:
                    System.out.println("请输入你需要购买的水杯数量:");
                    int cupnumber = scl.nextInt();
                    double cupnum = cupnumber * cup;
                    System.out.println("你购买了水杯" + cupnumber + "支，需要花费" + cupnum + "元");
                    System.out.println("需要继续购买请输入Y，否则输入N");
                    a=scl.next();
                    break;
            }
        }
    }
}
